Sink



FIG. 1 is a perspective view taken from the top, rear and left side of a sink embodying my new design;

FIG. 2 is a top plan view thereof;

FIG. 3 is a front elevational view thereof;

FIG. 4 is a rear elevational view thereof;

FIG. 5 is a right side elevational view thereof, the left side being the mirror image of the right side;

FIG. 6 is a bottom plan view thereof; and,

FIG. 7 is a cross-sectional view taken on line 7--7 of FIG. 2.

The broken line representations of holes in FIGS. 1, 2 and 6 are for the purpose of illustration only and form no part of the claimed design. 

The ornamental design for a sink, as shown and described. 